Chem 14b - Study guides, Class notes & Summaries

CHEM 14BL DR. OW PRACTICE MIDTERM EXAM V2 QUESTIONS CALCULATIONS WITH ANSWERS 2023 1. Consider the following calculation: [(12.635 +/- 0.005) / (5.967 +/- 0.003)] + (0.478 +/- 0.004) Calculate the percent relative error and the absolute error. .005 / 12.635 = . .003 / 5.967 = . . + . = . = total relative error for the division in parentheses 12.635 / 5.967 = 2. . x 2. = .0019 = total absolute error for the division in parentheses For the final addition s...

A−¿ ¿ ¿ ¿ (base/acid) HA=acid OH- =base A - =conjugate base H2O=conjugate acid Initial pH: Soltn. Acetic acid made by dissolving 5.00x10-3 mol acetic acid (HA) in 100.00mL water. Then titrated with strong base (NaOH) conc. 0.250M (Ka = 1.8x10-5) HA + H2O  H3O + + AKa = (x )(x) 0.05−x ASSUME X<<0.005  1.8x10-5 = (x)(x ) 0.05 solve I 0.05M ~ 0 0 x = 3.0x10-4 CHECK ASSUMPTION (3.0 x10−4 ) 0 .005 ∗100 = 6% (doesn’t work, plug into quadratic, watch ...

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detailed notes covering topics in gen chem 2: kinetics, mechanisms, catalysis, redox, electrochemistry, cell emf, and. electrolysis

Detailed notes from gen chem 2 covering thermodynamics, entropy, enthalpy, gibbs free energy, pressure, gases, equilibrium, and derivations

detailed notes on topics in gen chem 2: equilibrium, buffers, acids, bases, titrations, kinetics, orders of reactions, and rates